Three-dimensional scanner and control method
AssigneeJ. Morita Mfg. Corp.
InventorsTsuyoshi Tanaka, Takuya Okada, Takeshi Hayashi
Life of this patent
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Abstract
A three-dimensional scanner includes imaging circuitry configured to take an image of an object located at a focal position of a lens, a lens driver configured to drive the lens to make reciprocating motion in a linear direction, an angle detector configured to detect variation in angle of inclination of the lens with respect to a prescribed direction, and processing circuitry configured to control an operation of the lens in accordance with the variation in angle of inclination detected by the angle detector.
Claims10
A three-dimensional scanner configured to obtain three-dimensional data of a surface geometry of an object with a focus method, the three-dimensional scanner comprising:
- a lens;
- a hand-held housing in which the lens is accommodated;
- imaging circuitry configured to take an image of the object located at a focal position of the lens;
- a lens driver configured to drive the lens to make reciprocating motion in a linear direction;
- an angle detector configured to detect variation in angle of inclination of the lens with respect to a prescribed direction when a state of the hand-held housing changes between a state in which the hand-held housing is oriented to a horizontal direction and a state in which the hand-held housing is oriented to a vertical direction;
- and
- processing circuitry configured to control an operation of the lens in accordance with the variation in angle of inclination detected by the angle detector, wherein
- the processing circuitry is configured to increase an amplitude of the reciprocating motion of the lens or set a central position of the reciprocating motion back to a position before the variation in angle of inclination.
A control method of controlling a three-dimensional scanner configured to obtain three-dimensional data of a surface geometry of an object with a focus method, the control method comprising, as processing to be performed by a computer:
- taking an image of the object located at a focal position of a lens provided in a hand-held housing of the three-dimensional scanner;
- driving the lens to make reciprocating motion in a linear direction;
- detecting variation in angle of inclination of the lens with respect to a prescribed direction when a state of the hand-held housing changes between a state in which the hand-held housing is oriented to a horizontal direction and a state in which the hand-held housing is oriented to a vertical direction;
- and
- controlling an operation of the lens in accordance with the variation in angle of inclination detected in the detecting variation, wherein
- the controlling an operation of the lens includes increasing an amplitude of the reciprocating motion of the lens or setting a central position of the reciprocating motion back to a position before the variation in angle of inclination.
Dependencies are inferred from the claim text.